jojovix

It means something like before and after, and that the kit costs about 27$.

You can always go higher, but the cheapest way is by extending the distance betwen the chasis and suspention. http://www.subaru-slo.net/viewtopic.php?t=20 But if you ll be going too high the joints will not survive.

Try to put out the thermostat, if overheating stops it means you have air pocket in your cooling system, and most often the reason for that is broken gasket??? betwen head and block. And one more thing, in my country most of Subaru enthusiasts have renewed coolers, in some workshops they replace plastic parts with metal ones and you get the best cooler ever.